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WO1995023041A1 - Method of absorbing organic pollutants - Google Patents

Method of absorbing organic pollutants Download PDF

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Publication number
WO1995023041A1
WO1995023041A1 PCT/DE1995/000252 DE9500252W WO9523041A1 WO 1995023041 A1 WO1995023041 A1 WO 1995023041A1 DE 9500252 W DE9500252 W DE 9500252W WO 9523041 A1 WO9523041 A1 WO 9523041A1
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WO
WIPO (PCT)
Prior art keywords
fly ash
pollutant
pollutants
water
solidified
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE1995/000252
Other languages
German (de)
French (fr)
Inventor
Bernhard Zinke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6511551&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1995023041(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to DE59501449T priority Critical patent/DE59501449D1/en
Priority to PL95315952A priority patent/PL315952A1/en
Priority to US08/696,882 priority patent/US5769777A/en
Priority to JP7522068A priority patent/JPH09509097A/en
Priority to EP95910418A priority patent/EP0746428B1/en
Priority to DK95910418T priority patent/DK0746428T3/en
Publication of WO1995023041A1 publication Critical patent/WO1995023041A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/08—Reclamation of contaminated soil chemically
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/681—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of solid materials for removing an oily layer on water
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/32—Materials not provided for elsewhere for absorbing liquids to remove pollution, e.g. oil, gasoline, fat
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/041—Devices for distributing materials, e.g. absorbed or magnetic particles over a surface of open water to remove the oil, with or without means for picking up the treated oil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/204—Keeping clear the surface of open water from oil spills
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/918—Miscellaneous specific techniques
    • Y10S210/922—Oil spill cleanup, e.g. bacterial
    • Y10S210/925—Oil spill cleanup, e.g. bacterial using chemical agent

Definitions

  • the invention relates to a method for absorbing organic pollutants contaminated by the environment, such as oil, tar, phenols on soils, rubble or solid landfill areas, floating on and / or floating in a body of water or a landfill designed as a pollutant reservoir with liquid and / or muddy Phases and / or solid deposits.
  • organic pollutants contaminated by the environment such as oil, tar, phenols on soils, rubble or solid landfill areas, floating on and / or floating in a body of water or a landfill designed as a pollutant reservoir with liquid and / or muddy Phases and / or solid deposits.
  • the adsorbents used are polymers (e.g. DD 298 132, DE 4 008 693), binders (e.g. DD 144 274, 201 649, 234 370; DE 4 108 089, 3 825 905, 2 951 776, 2 452 061), carbon-containing substances (e.g. DD 223 076, 296 069, 277 595, 205 390; DE 3 818 096, 2 536 807), foamed materials (e.g. DE 4 113 125, 4 038 155, 2 738 528; DD 137 256), chemical agents (e.g.
  • the pollutants are processed using the technologies of heating (e.g. DD 294 684, 297 575), subtraction (e.g. DD 223 076) or extraction (e.g. DE 4 233 584).
  • fly ash and / or cement-activated fly ash with a large surface and hollow sphere structure in particular fly ash from lignite-dust-fired steam boilers, were brought into contact with the pollutant, fly ash and pollutant activated with water, to form a mixture that was immobilized with pollutants is mixed and used for consolidation. If the pollutants were applied to soils, rubble or solid landfill areas by accident, the fly ash is sprinkled dry onto the pollutant, the pollutant and the fly ash are mixed with water and installed as a contaminant-immobilized mixture in a landfill as a sealing material or as a substructure for traffic routes or deposited as a solidified and immobilized product.
  • the fly ash is applied to the surface of the body of water, the pollutants to the fly ash
  • the fly ash is dried or as ash according to the invention on the surface of the pollutant reservoir -Water suspension added, which absorbs pollutants to the fly ash, sediments the fly ash-pollutant mixture and settles and solidifies as a pollutant-immobilized mixture on the bottom of the pollutant reservoir.
  • the fly ash-water suspension is applied, sedimented, settled and solidified to the surface of the pollutant reservoir.
  • a surface with elastic materials e.g., is placed on the surface of the pollutant reservoir and / or the sedimentation layer.
  • Textile chips, mixed cement-activated fly ash-water suspension sedimented, settled and solidified.
  • REPLACEMENT LEAF 3 shows the principle of the technological sequence of immobilization of pollutants introduced by storage in the landfill or deposit.
  • Fly ash or cement-activated fly ash 3 with a large surface area and hollow sphere structure is sprinkled on the surface of the pollutant 1 distributed on the floor 2 (FIG. 1b).
  • Fly ash from lignite-dust-fired steam boilers is advantageously used.
  • the fly ash 3 adsorbs the pollutant 1 and forms the pollutant-sucked-in mixture 4, into which water 5 is introduced (FIG. 1c).
  • the total water content is 10% of the introduced dry matter and activates the fly ash 3.
  • the pollutant-ash-water mixture 6 generated in this way is mixed on site ready for installation and taken up or taken up and mixed ready for installation at the place of use (FIG. 1d).
  • the pollutant-ash-water mixture 6 (FIG. 1d) is processed as a sealant 7 for a landfill or a traffic route substructure without joints.
  • the mixture thus immobilized can also be easily deposited. After curing, the pollutant is immobilized long-term and leach-proof. This technology is also suitable for tars, phenols and other pollutants which have escaped in order to immobilize them.
  • the pollutant 1 with the floating portion 9 and the floating portion 10 is introduced into the water 8 (FIG. 2).
  • Fly ash or fly ash 3 activated with cement is uniformly applied to the surface of the water 8 and in the area of the spread of the pollutant 1.
  • the fly ash 3 binds the parts 9 floating on the surface and the parts 10 floating in the water 8 by sedimentation 11 and is activated with the water of the water 8.
  • the water-activated fly ash / pollutant mixture sediments in the body of water 8 and settles on the bottom of the body of water and solidifies as an immobilized layer 12.
  • This layer 12 is stable over the long term and is resistant to leaching.
  • the fly ash 3 is applied dry or as an ash-water suspension to the surface of the liquid phase 14.
  • the floating and floating portions of the pollutant in the liquid phase 14 absorb on the fly ash 3 by sedimentation 11.
  • the muddy portions of the pollutant in the muddy phase 15 likewise absorb on the fly ash 3 by sedimentation, the sludge layer 17 being formed in a compressed manner .
  • the activated fly ash / pollutant mixture sediments in phases 14,
  • This layer 12 is also stable in the long term and resistant to aging.
  • Mud layer 17 covered.
  • the liquid and parts of the muddy phases 14, 15 are cleaned such that they are drawn off as water and e.g. as a circulatory medium
  • ER S ATZBLATT can continue to be used in water treatment plants.
  • Further layers can be deposited on layer 12 by introducing fly ash-water suspension, sedimenting, settling and solidifying.
  • Layer 12 and the other layers also represent immobilized, stable and leach-resistant layers, so that the landfill or old deposit is capped.
  • Dry fly ash or fly ash suspension is introduced here so that the fly ash absorbs the floating and floating components and sediments as an ash / pollutant mixture.
  • Thick sludge phases are compressed and the mixture is then deposited, solidified and formed as an immobilized layer.
  • the liquid phases cleaned in this way are in turn settable.
  • the cement-activated ash-water suspension has elastic materials, e.g. Textile chips, added, also sedimented, settled and solidified. This creates an elastic layer as a cover that is highly resilient.
  • the layers formed represent covers with a surface, sealing and odor protection function.
  • the layers formed are highly resilient, leach-proof and stable.
  • the fly ash is available at any time and inexpensively. They do not require any further processing, but are used in the state in which they are obtained. If necessary, only a cement activation is to be carried out.
  • a method for absorption of organic umweltbela ⁇ constant pollutants such as oil, tar, phenols on soil, debris or solid landfill areas, swimming and / or floating in a body of water or a material reservoir as pollutants applied landfill with 'liquid and / or sludge phases and / or solid deposits characterized in that fly ash and / or cement-activated fly ash having a large surface area and hollow spherical structure, in particular fly ash from lignite-dust-fired steam boilers, are brought into contact with the pollutant, fly ash and pollutant activated with water, mixed to form a mixture which is immobilized with pollutants, and used for consolidation .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Public Health (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Soil Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treatment Of Sludge (AREA)
  • Road Paving Structures (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention concerns a method of absorbing organic pollutants (1) such as oil, tar or phenols in soil (12), rubble or solid-waste dumps, floating on and/or suspended in water or in a reservoir-type waste dump, the pollutants including liquid and/or sludge phases and/or solid deposits. According to the invention, high-surface-area, hollow-sphere-structure flue dust (3) and/or such flue dust activated with cement, particularly flue dust from steam boilers fired with lignite dust, is brought into contact with the pollutant, the flue dust and pollutant are activated with water (5) and mixed to form a mixture (6) in which the pollutant has been fixed, and the mixture is used in compacted form.

Description

Verfahren zur Absorption von organischen umwelbelasteten Process for the absorption of organic polluted

SchadstoffenPollutants

Die Erfindung betrifft ein Verfahren zur Absorption von or¬ ganischen umweltbelasteten Schadstoffen, wie Öl, Teer, Phenole auf Böden, Schutt oder Feststoffdeponieflächen, schwimmend auf und/oder schwebend in einem Gewässer oder einer als Schadstoffreservoir angelegten Deponie mit flüs- sigen und/oder schlammigen Phasen und/oder Feststoffablage- rungen.The invention relates to a method for absorbing organic pollutants contaminated by the environment, such as oil, tar, phenols on soils, rubble or solid landfill areas, floating on and / or floating in a body of water or a landfill designed as a pollutant reservoir with liquid and / or muddy Phases and / or solid deposits.

Für die Absorption von derartigen Schadstoffen sind eine Vielzahl von Technologien und Stoffe bekannt, für deren An- wendung und Herstellung sowie Entsorgung erhebliche Aufwen¬ dungen erforderlich sind, ohne daß für jeden Fall eine der Schadstoffbelastung entsprechende umfassende Immobilisie¬ rung eintritt.A large number of technologies and substances are known for the absorption of such pollutants, and considerable expenditure is required for their use, manufacture and disposal, without extensive immobilization corresponding to the pollutant load occurring in each case.

Dabei werden als Adsorptionsmittel Polymere (z.B. DD 298 132, DE 4 008 693), Bindemittel (z.B. DD 144 274, 201 649, 234 370; DE 4 108 089, 3 825 905, 2 951 776, 2 452 061 ), kohlenstoffhaltige Stoffe (z.B. DD 223 076, 296 069, 277 595, 205 390; DE 3 818 096, 2 536 807), aufgeschäumte Stoffe (z.B. DE 4 113 125, 4 038 155, 2 738 528; DD 137 256), chemische Mittel (z.B. DE 3 908 746, 3 507 917, 3 423 885, 2 434 632), biologische Stoffe (z.B. DE 4 104 898, 3 818 096, 1 769 461) oder Mikroorganismen (z.B. DE 2 911 016) verwendet. Die schadstoffbelasteten Stoffe werden mit den Technologien Erwärmung (z.B. DD 294 684, 297 575), Sub¬ traktion (z.B. DD 223 076) oder Extraktion (z.B. DE 4 233 584) aufbereitet.The adsorbents used are polymers (e.g. DD 298 132, DE 4 008 693), binders (e.g. DD 144 274, 201 649, 234 370; DE 4 108 089, 3 825 905, 2 951 776, 2 452 061), carbon-containing substances (e.g. DD 223 076, 296 069, 277 595, 205 390; DE 3 818 096, 2 536 807), foamed materials (e.g. DE 4 113 125, 4 038 155, 2 738 528; DD 137 256), chemical agents ( e.g. DE 3 908 746, 3 507 917, 3 423 885, 2 434 632), biological substances (e.g. DE 4 104 898, 3 818 096, 1 769 461) or microorganisms (e.g. DE 2 911 016). The pollutants are processed using the technologies of heating (e.g. DD 294 684, 297 575), subtraction (e.g. DD 223 076) or extraction (e.g. DE 4 233 584).

ERSATZBLATT Besondere Probleme stellen jedoch die durch Havarien in Ge¬ wässer eingeleiteten Schadstoffe und die durch Lagerung in Deponien oder Altablagerungen eingebrachten Schadstoffe dar. Dabei sind Ablagerungen mit flüssigen und/oder schlam¬ migen Phasen Problemschwerpunkte. Zur Beherrschung letztge¬ nannter Ablagerungen sind zumeist umfangreiche und aufwen¬ dige bautechnische Maßnahmen erforderlich, damit die Schadstoffe weder in das Grundwasser noch in das Oberflä- chenwasser gelangen. Eine Immobilisierung ist für diese Fälle nur mit außerordentlich hohen Aufwendungen durch thermische oder Extraktions-Behandlungen möglich, wobei dann immer noch weitere Aufwendungen für. die Entsorgung er¬ forderlich sind. Der Erfindung liegt daher die Aufgabe zu- gründe, mit einfachen Mitteln eine Absorption der Schad¬ stoffe und deren Immobilisierung zu erreichen.REPLACEMENT LEAF However, the pollutants introduced by accidents in water and the pollutants introduced by storage in landfills or old deposits pose particular problems. Deposits with liquid and / or muddy phases are the main problem. In order to control the last-mentioned deposits, extensive and complex structural measures are usually necessary so that the pollutants neither get into the groundwater nor into the surface water. Immobilization is only possible in these cases with extraordinarily high expenditures by thermal or extraction treatments, with further expenditures for. disposal is required. The object of the invention is therefore to achieve absorption of the pollutants and their immobilization using simple means.

In langjährigen, aufwendigen und umfangreichen Versuchen wurde gefunden, daß Flugasche und/oder mit Zement akti- vierte Flugasche großer Oberfläche und Hohlkugelstruktur, insbesondere Flugaschen aus braunkohlenstaubgefeuerten Dampfkesseln, mit dem Schadstoff in Kontakt gebracht, Flugasche und Schadstoff mit Wasser aktiviert, zu einem Schadstoffimmobilisierten Gemisch vermischt und verfesti- gend verwendet wird. Wurden die Schadstoffe durch Havarie auf Böden, Schutt oder Feststoffdeponieflächen aufgebracht, so wird erfindungsgemäß die Flugasche trocken auf den Schadstoff aufgestreut, der Schadstoff sowie die Flugasche mit Wasser gemischt und als Schadstoffimmobilisiertes Ge- misch fugenfrei in einer Deponie als Dichtbaustoff oder als Unterbau von Verkehrswegen eingebaut oder als verfestigtes und immobilisiertes Produkt abgelagert.In long-standing, complex and extensive experiments, it was found that fly ash and / or cement-activated fly ash with a large surface and hollow sphere structure, in particular fly ash from lignite-dust-fired steam boilers, were brought into contact with the pollutant, fly ash and pollutant activated with water, to form a mixture that was immobilized with pollutants is mixed and used for consolidation. If the pollutants were applied to soils, rubble or solid landfill areas by accident, the fly ash is sprinkled dry onto the pollutant, the pollutant and the fly ash are mixed with water and installed as a contaminant-immobilized mixture in a landfill as a sealing material or as a substructure for traffic routes or deposited as a solidified and immobilized product.

Wurden die Schadstoffe durch Havarie schwimmend auf dem und/oder schwebend im Wasser eines Gewässers eingebracht, so wird erfindungsgemäß auf die Oberfläche des Gewässers die Flugasche aufgegeben, die Schadstoffe an die FlugascheIf the pollutants have been introduced by floating on and / or floating in the water of a body of water, the fly ash is applied to the surface of the body of water, the pollutants to the fly ash

ERSATZBLATT absorbiert, das Flugasche-Schadstoff-Gemisch im Wasser se- dimentiert, als Schadstoffimmobilisiertes Gemisch auf dem Grund des Gewässers abgesetzt und verfestigt.REPLACEMENT LEAF absorbed, the fly ash-pollutant mixture sedimented in water, deposited as a pollutant-immobilized mixture on the bottom of the water and solidified.

Wurden die Schadstoffe durch Lagerung schwimmend auf dem und/oder schwebend in der als Schadstoffreservoir angeleg¬ ten Ablagerung mit flüssiger und/oder schlammiger Phase und/oder mit Feststoffablagerung eingebracht, so wird er¬ findungsgemäß auf die Oberfläche des Schadstoffreservoirs die Flugasche trocken oder als Asche-Wasser-Suspension auf¬ gegeben, die Schadstoffe an die Flugasche absorbiert, das Flugasche-Schadstoff-Gemisch sedimentiert und als Schad¬ stoffimmobilisiertes Gemisch auf den Grund des Schadstoff¬ reservoirs abgesetzt sowie verfestigt.If the pollutants were introduced by floating on and / or floating in the deposit created as a pollutant reservoir with liquid and / or muddy phase and / or with solid deposition, the fly ash is dried or as ash according to the invention on the surface of the pollutant reservoir -Water suspension added, which absorbs pollutants to the fly ash, sediments the fly ash-pollutant mixture and settles and solidifies as a pollutant-immobilized mixture on the bottom of the pollutant reservoir.

Wurden die Schadstoffe in der als Schadstoffreservoir ange¬ legten Ablagerung in fester Form gelagert, so wird erfin¬ dungsgemäß auf die Oberfläche des Schadstoffreservoirs die Flugasche-Wasser-Suspension aufgebracht, sedimentiert, ab- gesetzt und verfestigt.If the pollutants were stored in solid form in the deposit created as a pollutant reservoir, the fly ash-water suspension is applied, sedimented, settled and solidified to the surface of the pollutant reservoir.

Zur sicheren Abdeckung wird auf die Oberfläche des Schadstoffreservoirs und/oder der Sedimentationsschicht eine mit elastischen Materialien, z.B. Textilschnitzeln, vermischte zementaktivierte Flugasche-Wasser-Suspension se¬ dimentiert, abgesetzt und verfestigt.For secure covering, a surface with elastic materials, e.g., is placed on the surface of the pollutant reservoir and / or the sedimentation layer. Textile chips, mixed cement-activated fly ash-water suspension sedimented, settled and solidified.

In Ausführungsbeispielen wird die Erfindung näher erläu¬ tert. Die Zeichnung zeigt in:The invention is explained in more detail in exemplary embodiments. The drawing shows in:

Fig. 1 den technologischen Ablauf der Immobilisierung eines durch Havarie auf Böden ausgebrachten Schadstoff in schematischer Darstellung,1 shows a schematic representation of the technological sequence of immobilization of a pollutant which has been spread to the soil by an accident,

Fig. 2 den technologischen Ablauf der Immobilisierung eines durch Havarie in ein Gewässer ausgebrach¬ ten Schadstoff in Prinzipdarstellung,2 shows the principle of the technological sequence of the immobilization of a pollutant released into the water by an accident,

ERSATZBLATT Fig. 3 den technologischen Ablauf der Immobilisierung von durch Lagerung in der Deponie oder Ablage¬ rung eingebrachten Schadstoffen in Prinzipdar¬ stellung.REPLACEMENT LEAF 3 shows the principle of the technological sequence of immobilization of pollutants introduced by storage in the landfill or deposit.

Durch die Havarie gelangt der Schadstoff 1, z.B. Öl, auf die Oberfläche des sandigen Bodens 2 (Fig. 1a). Auf die Oberfläche des auf dem Boden 2 verteilten Schadstoffes 1 wird Flugasche oder mit Zement aktivierte Flugasche 3 großer Oberfläche und Hohlkugelstruktur aufgestreut (Fig. 1b). Vorteilhaft wird Flugasche aus braunkohlenstaubgefeu¬ erten Dampfkesseln verwendet. Die Flugasche 3 adsorbiert den Schadstoff 1 und bildet das schadstoffaufgesaugte Ge- misch 4, in das Wasser 5 eingebracht wird (Fig. 1c). Der Gesamtwasseranteil beträgt dabei 10% der eingebrachten Trockenmasse und aktiviert die Flugasche 3. Das dabei er¬ zeugte Schadstoff-Asche-Wasser-Gemisch 6 wird vor Ort ein¬ baufertig gemischt und aufgenommen oder aufgenommen und am Verwendungsort einbaufertig gemischt (Fig. 1d). Das Schadstoff-Asche-Wasser-Gemisch 6 (Fig. 1d) wird als Dicht¬ stoff 7 für eine Deponie oder einen Verkehrswegeunterbau fugenfrei verarbeitet. Das so immobilisierte Gemisch ist auch ohne weiteres ablagerbar. Nach Aushärtung ist der Schadstoff langfristig und auslaugungsfest immobilisiert. Diese Technologie ist ebenso für durch eine Havarie ausge¬ tretene Teere, Phenole und andere Schadstoffe geeignet, um diese zu immobilisieren.The pollutant 1, e.g. Oil, on the surface of the sandy bottom 2 (Fig. 1a). Fly ash or cement-activated fly ash 3 with a large surface area and hollow sphere structure is sprinkled on the surface of the pollutant 1 distributed on the floor 2 (FIG. 1b). Fly ash from lignite-dust-fired steam boilers is advantageously used. The fly ash 3 adsorbs the pollutant 1 and forms the pollutant-sucked-in mixture 4, into which water 5 is introduced (FIG. 1c). The total water content is 10% of the introduced dry matter and activates the fly ash 3. The pollutant-ash-water mixture 6 generated in this way is mixed on site ready for installation and taken up or taken up and mixed ready for installation at the place of use (FIG. 1d). The pollutant-ash-water mixture 6 (FIG. 1d) is processed as a sealant 7 for a landfill or a traffic route substructure without joints. The mixture thus immobilized can also be easily deposited. After curing, the pollutant is immobilized long-term and leach-proof. This technology is also suitable for tars, phenols and other pollutants which have escaped in order to immobilize them.

in das Gewässer 8 wird nach einer Havarie der Schadstoff 1 mit dem aufschwimmenden Anteil 9 und dem schwebenden Anteil 10 eingeleitet (Fig. 2). Auf die Oberfläche des Gewässers 8 und im Bereich der Ausbreitung des Schadstoffes 1 wird Flugasche bzw. mit Zement aktivierte Flugasche 3 gleich- mäßig aufgegeben.after an accident, the pollutant 1 with the floating portion 9 and the floating portion 10 is introduced into the water 8 (FIG. 2). Fly ash or fly ash 3 activated with cement is uniformly applied to the surface of the water 8 and in the area of the spread of the pollutant 1.

ERSATZBLATT Die Flugasche 3 bindet durch Sedimentation 11 die auf der Oberfläche schwimmenden Anteile 9 und die im Gewässer 8 schwebenden Anteile 10 und wird mit dem Wasser des Gewäs¬ sers 8 aktiviert.REPLACEMENT LEAF The fly ash 3 binds the parts 9 floating on the surface and the parts 10 floating in the water 8 by sedimentation 11 and is activated with the water of the water 8.

Das wasseraktivierte Flugasche-Schadstoff-Gemisch sedimen¬ tiert im Gewässer 8 und setzt sich am Boden des Gewässers ab und verfestigt sich als immobilisierte Schicht 12. Diese Schicht 12 ist langfristig stabil und auslaugungsfest.The water-activated fly ash / pollutant mixture sediments in the body of water 8 and settles on the bottom of the body of water and solidifies as an immobilized layer 12. This layer 12 is stable over the long term and is resistant to leaching.

In der als Schadstoffreservoir 13 angelegten Deponie oder Ablagerung sind Schadstoffe 1 in Form einer flüssigen PhaseIn the landfill or deposit created as a pollutant reservoir 13 there are pollutants 1 in the form of a liquid phase

14 mit aufschwimmenden sowie schwebenden Schadstoffteilen, in Form einer schlammigen Phase 15 und der Feststoffablage- rung 16 eingelagert (Fig. 3).14 with floating and floating pollutant parts, stored in the form of a muddy phase 15 and the solid deposit 16 (FIG. 3).

Auf die Oberfläche der flüssigen Phase 14 wird die Flug¬ asche 3 trocken oder als Asche-Wasser-Suspension aufgege¬ ben.The fly ash 3 is applied dry or as an ash-water suspension to the surface of the liquid phase 14.

Die schwimmenden und schwebenden Anteile des Schadstoffes in der flüssigen Phase 14 absorbieren an der Flugasche 3 durch Sedimentation 11. Die schlammigen Anteile des Schad¬ stoffes in der schlammigen Phase 15 absorbieren ebenfalls an der Flugasche 3 durch die Sedimentation, wobei die Schlammschicht 17 verdichtet gebildet wird. Das aktivierte Flugasche-Schadstoff-Gemisch sedimentiert in den Phasen 14,The floating and floating portions of the pollutant in the liquid phase 14 absorb on the fly ash 3 by sedimentation 11. The muddy portions of the pollutant in the muddy phase 15 likewise absorb on the fly ash 3 by sedimentation, the sludge layer 17 being formed in a compressed manner . The activated fly ash / pollutant mixture sediments in phases 14,

15 und setzt sich auf der verdichteten Schlammschicht 17 ab und verfestigt sich als immobilisierte Schicht 12. Diese Schicht 12 ist ebenfalls langfristig stabil und auslau¬ gungsfest.15 and settles on the compacted sludge layer 17 and solidifies as an immobilized layer 12. This layer 12 is also stable in the long term and resistant to aging.

Darüber hinaus wird die Feststoffablagerung 16 und dieIn addition, the solid deposit 16 and the

Schlammschicht 17 abgedeckelt. Die flüssigen und Teile der schlammigen Phasen 14, 15 sind derart gereinigt, daß diese als Wasser abgezogen werden und z.B. als KreislaufmediumMud layer 17 covered. The liquid and parts of the muddy phases 14, 15 are cleaned such that they are drawn off as water and e.g. as a circulatory medium

ERSATZBLATT oder über Wasseraufbereitungsanlagen weiter verwendbar sind.ER S ATZBLATT or can continue to be used in water treatment plants.

Auf die Schicht 12 sind weitere Schichten absetzbar, indem Flugasche-Wasser-Suspension eingebracht, sedimentiert, ab¬ gesetzt und verfestigt wird.Further layers can be deposited on layer 12 by introducing fly ash-water suspension, sedimenting, settling and solidifying.

Die Schicht 12 und die weiteren Schichten stellen ebenfalls immobilisierte, stabile und auslaugungsfeste Schichten dar, so daß eine Abdeckelung der Deponie oder Altablagerung durchgeführt wird.Layer 12 and the other layers also represent immobilized, stable and leach-resistant layers, so that the landfill or old deposit is capped.

Es ist ebenso möglich, muldenförmige Schadstoffreservoirs, z.B. Teerseen, mit schwimmenden und schwebenden Anteilen abzudecken.It is also possible to use trough-shaped pollutant reservoirs, e.g. Tar lakes, covered with floating and floating parts.

Hier wird trockene Flugasche oder Flugasche-Suspension ein¬ gebracht, so daß die Flugasche die schwimmenden und schwebenden Anteile absorbiert und als Asche-Schadstoff-Ge- misch sedimentiert.Dry fly ash or fly ash suspension is introduced here so that the fly ash absorbs the floating and floating components and sediments as an ash / pollutant mixture.

Dabei werden Dickschlamm-Phasen verdichtet und darauf das Gemisch abgesetzt, verfestigt und als immobilisierte Schicht ausgebildet.Thick sludge phases are compressed and the mixture is then deposited, solidified and formed as an immobilized layer.

Die so gereinigten flüssigen Phasen sind wiederum absetz¬ bar.The liquid phases cleaned in this way are in turn settable.

Besondere Vorteile ergeben sich, wenn der zementaktivierten Asche-Wasser-Suspension elastische Materialien, z.B. Tex- tilschnitzel, zugegeben, ebenfalls sedimentiert, abgesetzt und verfestigt werden. Dadurch wird eine elastische Schicht als Abdeckelung geschaffen, die hochbelastbar ist.Particular advantages result if the cement-activated ash-water suspension has elastic materials, e.g. Textile chips, added, also sedimented, settled and solidified. This creates an elastic layer as a cover that is highly resilient.

Weiterhin ist es möglich, eine Deponie oder Altablagerung mit Feststoffablagerung ebenfalls mit solchen Schichten zu versehen.It is also possible to provide a landfill or old deposit with solid deposition also with such layers.

ERSATZBLATT Durch die Erfindung werden folgende Vorteile erreicht:REPLACEMENT LEAF The following advantages are achieved by the invention:

1. Schadstoffbindung und Immobilisierung durch Absorption und Diffundierung der Schadstoffe in die Flugasche bei Vorliegen der Schadstoffe in flüssiger und/oder schlam¬ miger Form.1. Pollutant binding and immobilization by absorption and diffusion of the pollutants into the fly ash when the pollutants are in liquid and / or sludge form.

2. Die gebildeten Schichten stellen Abdecklungen mit Ober¬ flächen-, Versiegelungs- und Geruchsschutz-Funktion dar.2. The layers formed represent covers with a surface, sealing and odor protection function.

3. Die gebildeten Schichten sind hoch belastbar, auslau- gungsfest und stabil.3. The layers formed are highly resilient, leach-proof and stable.

4. Die angewendete Technologie ist einfach und kostengün¬ stig zu realisieren.4. The technology used is simple and inexpensive to implement.

5. Die Flugaschen sind jederzeit und preiswert verfügbar. sie bedürfen keiner weiteren Aufbereitung, sondern wer¬ den im Anfallzustand verwendet. Gegebenenfalls ist le¬ diglich eine Zementaktivierung durchzuführen.5. The fly ash is available at any time and inexpensively. they do not require any further processing, but are used in the state in which they are obtained. If necessary, only a cement activation is to be carried out.

6. Altlastenprobleme sind sicher, ökonomisch und ökologisch lösbar.6. Contaminated site problems can be solved safely, economically and ecologically.

7. Die bisherigen hohen Aufwendungen für Herstellung sowie Anwendung von Absorbenzien und Entsorgung der Schad¬ stoffe entfällt weitgehend.7. The previous high expenditure for the production and application of absorbents and disposal of the pollutants is largely eliminated.

ERSATZBLATT Patentansprüche:REPLACEMENT LEAF Claims:

1. Verfahren zur Absorption von organischen umweltbela¬ steten Schadstoffen, wie Öl, Teer, Phenole auf Böden, Schutt oder Feststoffdeponieflächen, schwimmend auf und/ oder schwebend in einem Gewässer oder einer als Schad- stoffreservoir angelegten Deponie mit' flüssigen und/oder schlammigen Phasen und/oder Feststoffablagerungen, g e k e n n z e i c h n e t d a d u r c h , daß Flugasche und/oder mit Zement aktivierte Flugasche großer Oberfläche und Hohlkugelstruktur, insbesondere Flugaschen aus braunkohlenstaubgefeuerten Dampfkesseln, mit dem Schadstof in Kontakt gebracht, Flugasche und Schadstoff mit Wasser aktiviert, zu einem schadstoffimmobilisierten Gemisch vermischt und verfestigend verwendet wird.1. A method for absorption of organic umweltbela¬ constant pollutants such as oil, tar, phenols on soil, debris or solid landfill areas, swimming and / or floating in a body of water or a material reservoir as pollutants applied landfill with 'liquid and / or sludge phases and / or solid deposits, characterized in that fly ash and / or cement-activated fly ash having a large surface area and hollow spherical structure, in particular fly ash from lignite-dust-fired steam boilers, are brought into contact with the pollutant, fly ash and pollutant activated with water, mixed to form a mixture which is immobilized with pollutants, and used for consolidation .

2. Verfahren nach Anspruch 1, wobei die Schadstoffe durch Havarie auf versiegelte oder nichtversiegelte Böden, Schutt oder Feststoffdeponieflächen aufgebracht werden, ge¬ kennzeichnet dadurch, daß die Flugasche trocken auf den Schadstoff aufgestreut, der dadurch gebundene Schadstoff sowie die Flugasche mit Wasser gemischt und als schadstoff¬ immobilisiertes Gemisch fugenfrei in einer Deponie als Dichtbaustoff, als Unterbau von Verkehrswegen eingebaut oder abgelagert wird.2. The method according to claim 1, wherein the pollutants are applied by accident to sealed or unsealed soils, rubble or solid landfill areas, ge indicates that the fly ash is sprinkled dry on the pollutant, the pollutant thus bound and the fly ash mixed with water and as Pollutant-immobilized mixture is jointlessly installed or deposited in a landfill as a sealing building material, as a substructure for traffic routes.

3. Verfahren nach Anspruch 2, gekennzeichnet dadurch, daß das Schadstoff-Flugaschen-Gemisch mit einem Wasseran¬ teil von > 10%, bezogen auf die Flugasche, gemischt wird.3. The method according to claim 2, characterized in that the pollutant-fly ash mixture with a Wasseran¬ part of> 10%, based on the fly ash, is mixed.

4. Verfahren nach Anspruch 1, wobei die Schadstoffe durch Havarie schwimmend auf dem und/oder schwebend im Was¬ ser eines Gewässers eingebracht werden, gekennzeichnet da¬ durch, daß auf die Oberfläche des Gewässers die Flugasche4. The method according to claim 1, wherein the pollutants are introduced by accident floating on and / or floating in the water of a water body, characterized in that the fly ash on the surface of the water body

ERSATZBLATT REPLACEMENT LEAF

Claims

aufgegeben, die Schadstoffe an die Flugasche absorbiert, das Flugasche-Schadstoff-Gemisch im Wasser sedimentiert, als schadstoffimmobilisiertes Gemisch auf dem Grund des Ge¬ wässers abgesetzt und verfestigt wird.relinquished, the pollutants absorbed onto the fly ash, the fly ash / pollutant mixture sedimented in the water, deposited and solidified as a pollutant-immobilized mixture on the bottom of the water. 5. Verfahren nach Anspruch 1, wobei die Schadstoffe durch Lagerung schwimmend auf dem und/oder schwebend in der als Schadstoffreservoir angelegten Deponie oder Altablage¬ rung mit flüssiger und/oder schlammiger Phase und/oder mit Feststoffablagerung eingebracht wird, gekennzeichnet da¬ durch, daß auf die Oberfläche des Schadstoffreservoirs die Flugasche trocken oder als Asche-Wasser-Suspension aufgege¬ ben, die Schadstoffe an die Flugasche absorbiert, das Flugasche-Schadstoff-Gemisch sedimentiert und als schad- stoffimmobilisiertes Gemisch auf der Oberfläche des am Boden verdichteten, schlammig bis festen Schadstoffreser¬ voirs abgesetzt sowie verfestigt wird.5. The method according to claim 1, wherein the pollutants are introduced by storage floating on and / or floating in the landfill created as a pollutant reservoir or Altablage¬ tion with liquid and / or muddy phase and / or with solid deposition, characterized in that the fly ash is given dry or as an ash-water suspension to the surface of the pollutant reservoir, the pollutants are absorbed into the fly ash, the fly ash-pollutant mixture is sedimented and as a contaminant-immobilized mixture on the surface of the muddy to solid compacted on the ground Schadstofffreser¬ voirs discontinued and solidified. 6. Verfahren nach Anspruch 5, gekennzeichnet dadurch, daß die flüssige Phase durch die Sedimentation gereinigt und abgezogen wird oder schadstofffrei verdunstet.6. The method according to claim 5, characterized in that the liquid phase is cleaned by the sedimentation and drawn off or evaporates free of pollutants. 7. Verfahren nach Anspruch 5 und 6, gekennzeichnet da¬ durch, daß auf die Oberfläche der gereinigten flüssigen Phase Flugasche aufgebracht, die dadurch erzeugte Suspen¬ sion sedimentiert, auf den Phasen schadstofffrei abgesetzt und verfestigt wird.7. The method according to claim 5 and 6, characterized da¬ characterized in that fly ash is applied to the surface of the purified liquid phase, the resulting suspension sedimented, settled on the phases free of pollutants and solidified. 8. Verfahren nach Anspruch 5 bis 7, gekennzeichnet da- durch, daß auf die Oberfläche der Sedimentationsschicht eine Flugasche-Wasser-Suspension durch Sedimentation abge¬ setzt und verfestigt wird.8. The method according to claim 5 to 7, characterized in that a fly ash-water suspension is deposited and solidified by sedimentation on the surface of the sedimentation layer. 9. Verfahren nach Anspruch 5 bis 8, gekennzeichnet da- durch, daß auf die Oberfläche der Sedimentationsschicht eine mit elastischen Materialien, z.B. Textilschnitzeln, vermischte und mit Zement aktivierte Flugasche-Wasser-Sus-9. The method according to claim 5 to 8, characterized in that on the surface of the sedimentation layer with elastic materials, e.g. Textile chips, mixed and cement-activated fly ash-water suspension ERSATZBLATT pension durch Sedimentation abgesetzt sowie verfestigt wird.REPLACEMENT LEAF pension is discontinued by sedimentation and solidified. 10. Verfahren nach Anspruch 1, wobei die Schadstoffe in der als Schadstoffreservoir angelegten Deponie oder Altab¬ lagerung in fester Phase gelagert werden, gekennzeichnet dadurch, daß auf die Oberfläche des Schadstoffreservoirs die Flugasche-Wasser-Suspension aufgebracht, sedimentiert, abgesetzt und verfestigt wird.10. The method according to claim 1, wherein the pollutants are stored in the landfill or Altab¬ as a pollutant reservoir in solid phase, characterized in that the fly ash water suspension is applied, sedimented, settled and solidified on the surface of the pollutant reservoir. 11. Verfahren nach Anspruch 10, gekennzeichnet dadurch, daß auf die Oberfläche des Schadstoffreservoirs und/oder der Sedimentationsschicht eine mit elastischen Materialien, z.B. Textilschnitzeln, vermischte zementaktivierte Flug- asche-Wasser-Suspension sedimentiert, abgesetzt und verfe¬ stigt wird.11. The method according to claim 10, characterized in that on the surface of the pollutant reservoir and / or the sedimentation layer with elastic materials, e.g. Textile chips, mixed cement-activated fly ash-water suspension is sedimented, settled and solidified. ERSATZBLATT REPLACEMENT LEAF
PCT/DE1995/000252 1994-02-25 1995-02-27 Method of absorbing organic pollutants Ceased WO1995023041A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE59501449T DE59501449D1 (en) 1994-02-25 1995-02-27 METHOD FOR ABSORBING ORGANIC ENVIRONMENTAL POLLUTANTS
PL95315952A PL315952A1 (en) 1994-02-25 1995-02-27 Method of absorbing organic substances constituting environmental pollutants
US08/696,882 US5769777A (en) 1994-02-25 1995-02-27 Method for absorbing organic pollutants
JP7522068A JPH09509097A (en) 1994-02-25 1995-02-27 Methods for absorbing organic environmentally harmful pollutants
EP95910418A EP0746428B1 (en) 1994-02-25 1995-02-27 Method of absorbing organic pollutants
DK95910418T DK0746428T3 (en) 1994-02-25 1995-02-27 Process for absorption of organic, environmentally harmful, harmful substances

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4406714.3 1994-02-25
DE4406714A DE4406714A1 (en) 1994-02-25 1994-02-25 Process for the absorption of organic pollutants polluted by the environment

Publications (1)

Publication Number Publication Date
WO1995023041A1 true WO1995023041A1 (en) 1995-08-31

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EP (1) EP0746428B1 (en)
JP (1) JPH09509097A (en)
CN (1) CN1141603A (en)
AT (1) ATE163143T1 (en)
CA (1) CA2184081A1 (en)
DE (2) DE4406714A1 (en)
DK (1) DK0746428T3 (en)
HU (1) HUT74972A (en)
PL (1) PL315952A1 (en)
WO (1) WO1995023041A1 (en)

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DE59501449D1 (en) 1998-03-19
CN1141603A (en) 1997-01-29
HU9602329D0 (en) 1996-10-28
JPH09509097A (en) 1997-09-16
HUT74972A (en) 1997-03-28
CA2184081A1 (en) 1995-08-31
ATE163143T1 (en) 1998-02-15
US5769777A (en) 1998-06-23
EP0746428B1 (en) 1998-02-11
DK0746428T3 (en) 1998-09-28
DE4406714A1 (en) 1995-08-31
EP0746428A1 (en) 1996-12-11
PL315952A1 (en) 1996-12-23

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